Wagas Posted June 8, 2019 Share Posted June 8, 2019 Hi, is there a view on whether it's better to install UFH and screed before or after plastering the walls or is there no benefit to doing it in a certain order? Thanks Link to comment Share on other sites More sharing options...
PeterW Posted June 8, 2019 Share Posted June 8, 2019 Floors first as plasterboard should end 10-20mm above the floor. 1 Link to comment Share on other sites More sharing options...
ProDave Posted June 8, 2019 Share Posted June 8, 2019 I did floors last as I didn't want them messed up with plaster muck. As long as you know the floor make up you know where to stop the plasterboard, and the plasterer won't skim lower than that. Link to comment Share on other sites More sharing options...
ragg987 Posted June 8, 2019 Share Posted June 8, 2019 What are doing above the screed? We screeded prior to boarding, plaster, mist costs, wall paint where spray painted, then engineered board on floor. After this skirting and finishing off. Link to comment Share on other sites More sharing options...
Wagas Posted June 8, 2019 Author Share Posted June 8, 2019 13 minutes ago, ragg987 said: What are doing above the screed? I'm not certain what the floor finishes will be, does it matter? Link to comment Share on other sites More sharing options...
ragg987 Posted June 8, 2019 Share Posted June 8, 2019 As long as the finish height is known, should not matter. My doubt is if you intend to polish the floor, not sure what is best in that case. Link to comment Share on other sites More sharing options...
ultramods Posted June 8, 2019 Share Posted June 8, 2019 I would say do screed ASAP as it can take a long time to dry out, which can then delaying fitting the flooring. Link to comment Share on other sites More sharing options...
Wagas Posted June 8, 2019 Author Share Posted June 8, 2019 I guess the downside of doing it before plastering walls is the manifold is installed onto a section of bare block wall? Link to comment Share on other sites More sharing options...
nod Posted June 8, 2019 Share Posted June 8, 2019 2 hours ago, Wagas said: Hi, is there a view on whether it's better to install UFH and screed before or after plastering the walls or is there no benefit to doing it in a certain order? Thanks 11 minutes ago, Wagas said: I guess the downside of doing it before plastering walls is the manifold is installed onto a section of bare block wall? 11 minutes ago, Wagas said: I guess the downside of doing it before plastering walls is the manifold is installed onto a section of bare block wall? Doesn’t make any difference But as below screed shouldn’t come in contact with plaster Link to comment Share on other sites More sharing options...
ragg987 Posted June 8, 2019 Share Posted June 8, 2019 38 minutes ago, Wagas said: I guess the downside of doing it before plastering walls is the manifold is installed onto a section of bare block wall? Ours was not properly fixed to the wall, essentially just hanging, until plastered and painted. Link to comment Share on other sites More sharing options...
Wagas Posted June 8, 2019 Author Share Posted June 8, 2019 ok got it, thanks ? Link to comment Share on other sites More sharing options...
Redoctober Posted June 8, 2019 Share Posted June 8, 2019 3 hours ago, ragg987 said: Ours was not properly fixed to the wall, essentially just hanging, until plastered and painted. @Wagas - Like @ragg987 We put the screed down over the UFH first as to allow plenty of time for it to dry out prior to the tiles going down. Sometimes an image or two helps. The two images show how the manifold was fixed to a wall, in the under stairs cupboard, prior to the walls being plastered and how it ended up afterwards. 2 Link to comment Share on other sites More sharing options...
dpmiller Posted June 11, 2019 Share Posted June 11, 2019 If screed before PB is the consensus, how does one approach the scenario where screed depth is greater than the thickness of an internal stud's soleplate? The PB ends need something to be screwed into etc, so do we cut short sections of timber and place between the studs or is there some other cunning plan? Link to comment Share on other sites More sharing options...
dpmiller Posted June 15, 2019 Share Posted June 15, 2019 chasing some thoughts on this please @PeterW @nod? Link to comment Share on other sites More sharing options...
bassanclan Posted June 15, 2019 Share Posted June 15, 2019 Fit internal studwork after screeding 1 Link to comment Share on other sites More sharing options...
PeterW Posted June 15, 2019 Share Posted June 15, 2019 As @bassanclan said - internal studs after screed. Means you have bigger areas to work with to get the screed flat, also means you can still have a little flexibility in positioning (assuming UFH layout isn’t prescriptive) Link to comment Share on other sites More sharing options...
Nickfromwales Posted June 15, 2019 Share Posted June 15, 2019 On 11/06/2019 at 08:18, dpmiller said: If screed before PB is the consensus, how does one approach the scenario where screed depth is greater than the thickness of an internal stud's soleplate? The PB ends need something to be screwed into etc, so do we cut short sections of timber and place between the studs or is there some other cunning plan? If I'm studding, I would lay 2 pieces of stud ( so same width as the sole plate ) and give myself something decent to fix the skirting to later down the road. Quicker and cheaper to do 2 pieces stood upright to give you the most height for fixing, and just work out what thickness of plywood ( usually 6mm ( 44mm stud x 2 = 88mm so 6mm short of the average stud depth of 92mm )) to fit in between them to keep the infill flush to the stud-work. This is normally done from waste / off cuts anyway so should have little cost impact. Remember to use DPM / DPC between the screed and the timber ! Link to comment Share on other sites More sharing options...
Nickfromwales Posted June 15, 2019 Share Posted June 15, 2019 8 minutes ago, bassanclan said: Fit internal studwork after screeding Assumed the question was about if the studwork was already in situ. @dpmiller ? Link to comment Share on other sites More sharing options...
Wagas Posted June 15, 2019 Author Share Posted June 15, 2019 (edited) @RedoctoberThanks for the pics Where would you guys put the manifolds if you don't have a utility room? The UFH designer suggested under the stairs but the stair area is small and will have a large glass window so I'm thinking not to congest/clutter this area. I was thinking about having some large cupboards where the red arrow is in the kitchen and putting boiler/UFH there. Any thoughts appreciated Edited June 15, 2019 by Wagas layout Link to comment Share on other sites More sharing options...
Nickfromwales Posted June 15, 2019 Share Posted June 15, 2019 Nothing wrong with that, as long as that cupboard doesn't house perishables. Dont fix to the unit, fix to the wall so the cupboard doesn't turn into a drum Link to comment Share on other sites More sharing options...
Pocster Posted June 15, 2019 Share Posted June 15, 2019 On 08/06/2019 at 18:36, ragg987 said: Ours was not properly fixed to the wall, essentially just hanging, until plastered and painted. Mines just screwed to osb . Will box in after . Screeded floor first Link to comment Share on other sites More sharing options...
nod Posted June 15, 2019 Share Posted June 15, 2019 3 hours ago, dpmiller said: chasing some thoughts on this please @PeterW @nod? It preferable to have a nice level screed to put a couple of packers on But an practice in particularly on commercial work For what ever reason the finished floor isn’t in We normally just fire lengths of metal stud above the dpc to temporarily hold the boards or if it is wet plaster backing we snap a line and fit a 15 mil stop bead On a house a couple of bricks will do the job Or even a chalk line around the perimeter and tap a few nails in for the boards to sit on Either way your plasterers won’t bother Link to comment Share on other sites More sharing options...
dpmiller Posted June 15, 2019 Share Posted June 15, 2019 10 hours ago, Nickfromwales said: Assumed the question was about if the studwork was already in situ. @dpmiller ? Yup, studs up as part of TF kit. Link to comment Share on other sites More sharing options...
Nickfromwales Posted June 15, 2019 Share Posted June 15, 2019 5 hours ago, dpmiller said: Yup, studs up as part of TF kit. Strange, but true ?. Doubling up on the sole plate it is for you then. ? Link to comment Share on other sites More sharing options...
dpmiller Posted June 16, 2019 Share Posted June 16, 2019 thought so. External walls are battened out also so they'll need it too. Ho-hum. Link to comment Share on other sites More sharing options...
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